Arrangement and method for updating a control software in a high-voltage control unit

Abstract

An arrangement and a method for updating a control software in a high-voltage control device, has as its objective to specify a solution with which an update of the control software, independently of a current operational state of the high-voltage region of the high-voltage control device, is enabled for the low voltage region as well as also the high-voltage region of the high-voltage control device.

The invention claimed is: 
     
       1. A method for updating a control software in a high-voltage control device, wherein, for updating the control software for a first control configuration, a new first control software is provided and for updating the control software for a second control configuration a new second control software is provided and wherein a transmission of the new control software into memory areas of the control configurations is carried out,
 wherein in the case that the second control configuration is in a switched-off state, in a first step a transmission of the new first control software and the new second control software into a memory area of the first control configuration takes place, in which memory area the new first control software and the new second control software is stored, 
 wherein in a subsequent step, after it has been detected by means of the first control configuration that the second control configuration has moved into a switched-on state, a transmission of the new second control software, stored in the memory area of the first control configuration, into a memory area of the second control configuration takes place; 
 wherein the first control configuration includes a first memory area for storing a second control software for the second control configuration and a first control software, and 
 wherein the second control configuration includes a second memory area for storing the second control software for the second control configuration. 
 
     
     
       2. A method according to  claim 1 , wherein after the transmission of the new second control software into a memory area of the second control configuration, the first control software is overwritten with the new first control software and the second control software is overwritten with the new second control software and that the first control configuration and the second control configuration are subsequently operated with the updated control software. 
     
     
       3. A method according to  claim 2 , wherein the transmission of the new second control software from the memory area of the first control configuration into the memory area of the second control configuration takes place across a third communication connection. 
     
     
       4. A method according to  claim 2 , wherein a check of the correct transmission of the data of the new second control software into the memory area of the second control configuration takes place using a checksum. 
     
     
       5. A method according to  claim 1 , wherein the transmission of the new second control software from the memory area of the first control configuration into the memory area of the second control configuration takes place across a third communication connection. 
     
     
       6. A method according to  claim 5 , wherein a check of the correct transmission of the data of the new second control software into the memory area of the second control configuration takes place using a checksum. 
     
     
       7. A method according to  claim 1 , wherein a check of the correct transmission of the data of the new second control software into the memory area of the second control configuration takes place using a checksum. 
     
     
       8. A method according to  claim 1 , wherein the high-voltage control device is in a motor vehicle.